福建中立恒自动化设备有限公司

1．输入/输出单元

输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。

PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。

由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。

I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。

PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。

常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。

常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。

继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。

PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。

2．通信接口

PLC配有各种通信接口，这些通信接口一般都带有通信处理器。

PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。

PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。

与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。

3．智能接口模块

智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。

它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。

PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。

以下链接皆有货

ASTRID PB115 PCB CARD PB115003D

ASTRID PB121003A DISPLAY PCB CARD PB122003A

ASTRID PB185002B D-CPU PCB CARD PB185004B

ASTRO 2205904-000-00 AS20-6 MOTOR 3-230V 50/60HZ 46/43MA 6/7.2 MIN-1

ASTRO AS20-6-9377888-000-00 MOTOR

ASTRODYNE PMK-225S-48-U POWER SUPPLY PMK320S-JBL

ASUS SH-224

ASYS Elrest front console control unit type: ASYS / CAN / P50 V1.13 / 24V DC

Asys Elrest front panel control unit Type: Asys / CAN / P50 V1.13 / 24 V DC

ATAM DIN CONNECTOR

ATB-DYNAMOT 456503 ATB FREQUENCY CONVERTER 2.2KW FOR ATV/M LK 05421120

ATB-DYNAMOT 456503 FREQUENCY CONVERTER 2.2KW FOR ATV/M LK05421120 UNCS-090LB-02A

ATKINSON ELECTRONICS SIA07A SPECIAL FUNCTION ANALOG SIGNAL INTERFACE PCB REV.A

ATLANTA175 58 44 620 SERVO WORM REDUCER

ATLAS COPCO 1622 0018 00 HOSE ASSEMBLY WITH 3905070931 SERVICE INDICATOR

ATLAS COPCO 1900 0701 45 I/O MODULE

ATLAS COPCO 1900 0710 12 ELEKTRONIKON II COMPRESSOR CONTROLLER PANEL

ATLAS COPCO 2102-S7-230R POWER FOCUS CONTROLLER

Atlas Copco DMC 51540P / *Ver.: 3.17 Digital Motion Controller

Atlas Copco DMC 51540p / Ver 3.17 Digital Motion Controller

Atlas Copco DMC 51540P-AC / *Ver.: 3.18 Digital Motion Controller

ATLAS COPCO DMC 53080-0 MOTION CONTROLLER, VER.3.17, 9032010020-0008

ATLAS COPCO P1630070700 SMART BOX ETH-24V PSU COMPRESSOR MONITOR ETHERNET MODEM

ATOMS GIO40 A -24

ATOS DHA-0713/PA-M24 EXPLOSION PROOF SOLENOID DIRECTIONAL VALVE 0A-24DC

ATRONIC MDC-PT-S R10 PCB CARD MODULE POE 13,5VDC/10W

ATV320U15NAC Schneider Electric

AUER TYPE BSR 10CM

AUMA Z025.024(01) ELECTRONIC CARD Z025.024/03

AUMA Z036.640(00) PCB CARD Z036.640/02-01

AURORA ENLIGHTE EN-GU004/30

AUTO MASKIN MK-6 RELAY EXPANSION UNIT MODULE 75260

AUTO-MASKIN 500-1 PCB CARD

AUTO-MASKIN 500-1 PCB MODULE

AUTO-MASKIN CU2500 ENGINE CONTROL SYSTEM WITH RK-60 WIRE TERMINAL CARD MODULE

AUTO-MASKIN DCU 205 DIESEL ENGINE CONTROL UNIT

AUTO-MASKIN DCU 205-C-1 WIRE TERMINAL MODULE ENGINE CONTROLLER

AUTO-MASKIN MK-14 PCB MODULE 75261

AUTO-MASKIN RK-66 INTERFACE MODULE 1075410

AUTO-MASKIN RK-66 WIRE TERMINAL CARD INTERFACE MODULE 1075410

AUTOMATIC POWER APL 1297A FOUR PLACE LAMPCHANGER 8087-0060

AUTOMATIC VALVE P06-008 EMERGENCY STOP VALVE

AUTOMATION DIRECT D3-04AD 4 CHANNEL ANALOG INPUT MODULE

AUTOMATION DIRECT D3-16ND2-1 16-POINT DISCRETE INPUT MODULE

AUTOMATION DIRECT D4-08B-1 I/O BASE 8 SLOT PANEL MOUNT

AUTOMATION DIRECT D4-16TR RELAY OUTPUT MODULE

AUTOMATION DIRECT EA7-S6C-R+05817B090 HMI OPERATOR INTERFACE PANEL

AUTOMATION DIRECT NITRA PNEUMATICS SILENCER SBC-18N

Autometers Systems IC 970 900 Series Panel Mounted Energy Meter, 3-phase

AUTONICS BEN5M-MFR PHOTOELECTRIC SENSOR / LOT OF 3

AUTONICS FX6-I STANDARD DIGITAL COUNTER/TIMER / LOT OF 2

AUTRONICA 7212-064.0002 BPF-40A PCB CARD

AUTRONICA 7212-255.0002 POWER SUPPLY BOARD

AUTRONICA 7252-027.0000 KMW-1 ADAPTING CARD

AUTRONICA AK-35/4 GENERATOR GUARD 220-440V

AUTRONICA AK-38/1 VOLTAGE AND FREQUENCY MONITOR 1199

AUTRONICA AKN-21A/2 PCB CARD 7255-016.0002 AKN21A2

AUTRONICA AL-100/AI8EX GT-250 SERIES PRESSURE TRANSDUCER EX94C011

AUTRONICA AUTRO FLAME X33AF A MULTISPECTRUM IR FLAME DETECTOR

AUTRONICA AUTRO POINT HC200B1A2W1 METHANE GAS DETECTOR 007166-007

AUTRONICA AUTROFLAME 20/20L-C FLAME DETECTOR

AUTRONICA AUTRO-POWER SC-6/24-6C SWITCH MODE POWER SUPPLY SC-6

AUTRONICA AUTROSAFE BC-310 CONTROL PANEL VERSION 3

AUTRONICA BBR-200 ADDRESSABLE SOUNDER 116-BBR-200

AUTRONICA BD-200M HEAT DETECTOR BASE - LOT OF 4

AUTRONICA BD-505/160EXD POINT HEAT DETECTOR IP66 1/2" NPT

AUTRONICA BDH-200 HEAT DETECTOR HEAD 0002201833300825

AUTRONICA BDH-300 HEAT DETECTOR 0002201434600947

AUTRONICA BF-300 ADDRESSABLE MANUAL CALL POINT

AUTRONICA BF-300V2 MANUAL CALL POINT

AUTRONICA BF-31 MANUAL CALL POINT 116-BF-31

AUTRONICA BF-33L MANUAL CALL POINT

AUTRONICA BF-500/N MANUAL CALL POINT N-7483 IP24

AUTRONICA BF-510WP-H MANUAL CALL POINT 116-BF-510WP-HM

AUTRONICA BF-52/0100 MANUAL CALL POINT IP66

AUTRONICA BF-53/EX/0100 MANUAL CALL POINT BF53EX0100

AUTRONICA BF-53/EX/0300 DELUGE RELEASE POINT IP66

AUTRONICA BG-201 IR FLAME DETECTOR

AUTRONICA BG-21 AUTROFLAME IR FLAME DETECTOR

AUTRONICA BHH-200 SMOKE DETECTOR 0001201534500805 - LOT OF 5

AUTRONICA BHH-200 SMOKE DETECTOR HEAD 0001201833301197

AUTRONICA BHH-220 MULTI SENSOR DETECTOR - LOT OF 5

AUTRONICA BHH-220 MULTI SENSOR DETECTOR 0004201733101044 - LOT OF 10

AUTRONICA BHH-26 SMOKE DETECTOR HEAD 2009.104.0017 - LOT OF 5

AUTRONICA BHH-26 SMOKE DETECTOR HEAD 2016.236.0102

AUTRONICA BHH-300 SMOKE DETECTOR 0001201008401324 - LOT OF 10

AUTRONICA BHH-300 SMOKE DETECTOR HEAD - LOT OF 5

AUTRONICA BHH-31A OPTICAL SMOKE DETECTOR - LOT OF 5

AUTRONICA BHH-31A OPTICAL SMOKE DETECTOR A11010209 - LOT OF 10

AUTRONICA BHH-31A/EX SMOKE DETECTOR WITH HUBA CONTROL 604.99352

AUTRONICA BHH-500 SMOKE DETECTOR 0001201230300658 WITH BASE - LOT OF 10

AUTRONICA BHH-500 SMOKE DETECTOR 0001201230300658 WITH BASE - LOT OF 5

AUTRONICA BHH-500/N SMOKE DETECTOR - LOT OF 5

AUTRONICA BHH-500/S/N SMOKE DETECTOR 00012014241005 IP44D TA 70°C

AUTRONICA BJH-33 SMOKE DETECTOR HEAD - LOT OF 10

AUTRONICA BJH-33 SMOKE DETECTOR HEAD - LOT OF 5

AUTRONICA BKH-30 INTERFACE UNIT HEAD - LOT OF 5

AUTRONICA BN-300 FIRE ALARM INTERFACE UNIT 116-BN-300

AUTRONICA BN-300M INPUT UNIT BNB-300/32

AUTRONICA BN-33A/24 FIRE ALARM INTERFACE UNIT 811.001.01.033

AUTRONICA BNA-320/06 CONTROL UNIT 0204200911000014 SW 1.10

AUTRONICA BNA-320/06 INTERFACE BOARD

AUTRONICA BNB-300/32 INTERFACE MODULE

AUTRONICA BNB-342/EX POWERLOOP INPUT UNIT 9212-366.0003 REV 5

AUTRONICA BNB-35 INTERFACE ADDRESS UNIT 116-BNB-35

AUTRONICA BPB-41A PCB CARD 7212-096.0001

AUTRONICA BPC-40 PCB CARD 7212-063.0003

AUTRONICA BPJ-40/40 PCB CARD 7211-589.0000

AUTRONICA BPS-405 POWER SUPPLY UNIT 04.16.244.011

AUTRONICA BPS-42 PCB CARD 7212-115.0001

AUTRONICA BPS-45 POWER SUPPLY UNIT

AUTRONICA BS-1108 DISPLAY FOR AUTROSAFE 116-BS-1108

AUTRONICA BS-1346 MAIN TERMINAL BLOCK 04.18.270.002

AUTRONICA BS-210 AUTOPRIME FIRE ALARM OPERATOR PANEL 02.15.293.014

AUTRONICA BSA-101 MAIN PROCESSOR BOARD

AUTRONICA BSA-101 MAIN PROCESSOR BOARD 7212-142.0008

AUTRONICA BSD-100 LOOP OUTPUT MODULE 7212-144.0004

AUTRONICA BSD-100 LOOP OUTPUT MODULE 7212-144.0006

AUTRONICA BSD-310 LOOP DRIVER MODULE 116-BSD-310

AUTRONICA BSD-310/N LOOP DRIVER MODULES FOR ZONE 2

AUTRONICA BSD-330 LOOP INTERFACE MODULE 07.15.308.048

AUTRONICA BSF-310B CONNECTION MODULE 7212-299.001

AUTRONICA BSJ-100 16 WAY OUTPUT MODULE

AUTRONICA BSJ-100 PCB MODULE

AUTRONICA BSL-100 COMMUNICATION MODULE 7212-145.0001

AUTRONICA BSL-100 COMMUNICATION MODULE 7212-145.0002

AUTRONICA BSL-100 PCB MODULE 7212-145.0002

AUTRONICA BSL-310, BSS-310A MODULE 08.15.297.014, 05.15.300.013

AUTRONICA BSR-100 MAIN BOARD

AUTRONICA BSR-100A MAIN BOARD BSR-100 7212-143.0005